This isn't exactly the same lens, but it's practically the same - Yashinon 50mm f/1.4 DS-M in the C/Y mount. Most of these were made in an M42 mount, so I think this is actually the same as the ML lens (C/Y) before they started using the "ML" name...

Used Olympus PL1 in program mode. All pictures were taken with lens wide open.